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C92300 Bronze vs. CR023A Copper

Both C92300 bronze and CR023A copper are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 87% of their average alloy composition in common.

For each property being compared, the top bar is C92300 bronze and the bottom bar is CR023A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 19
15
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 40
43
Tensile Strength: Ultimate (UTS), MPa 300
220
Tensile Strength: Yield (Proof), MPa 140
130

Thermal Properties

Latent Heat of Fusion, J/g 190
210
Maximum Temperature: Mechanical, °C 170
200
Melting Completion (Liquidus), °C 1000
1090
Melting Onset (Solidus), °C 850
1040
Specific Heat Capacity, J/kg-K 370
390
Thermal Conductivity, W/m-K 75
380
Thermal Expansion, µm/m-K 18
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
100
Electrical Conductivity: Equal Weight (Specific), % IACS 12
100

Otherwise Unclassified Properties

Base Metal Price, % relative 33
31
Density, g/cm3 8.7
9.0
Embodied Carbon, kg CO2/kg material 3.4
2.6
Embodied Energy, MJ/kg 56
41
Embodied Water, L/kg 370
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 47
29
Resilience: Unit (Modulus of Resilience), kJ/m3 86
76
Stiffness to Weight: Axial, points 6.9
7.2
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 9.5
6.8
Strength to Weight: Bending, points 11
9.0
Thermal Diffusivity, mm2/s 23
110
Thermal Shock Resistance, points 11
7.8

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.25
0
Bismuth (Bi), % 0
0 to 0.00050
Copper (Cu), % 85 to 89
99.9 to 99.995
Iron (Fe), % 0 to 0.25
0
Lead (Pb), % 0.3 to 1.0
0 to 0.0050
Nickel (Ni), % 0 to 1.0
0
Phosphorus (P), % 0 to 1.5
0.0050 to 0.013
Silicon (Si), % 0 to 0.0050
0
Silver (Ag), % 0
0 to 0.015
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 7.5 to 9.0
0
Zinc (Zn), % 2.5 to 5.0
0
Residuals, % 0 to 0.7
0